Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material Composition | 45# Steel or Stainless Steel 304 |
| Coupling Design | Single-Disc, Double-Disc, or Expansion Sleeve |
| Rated Torque Range | 5 Nm to 500 Nm |
| Maximum Rotational Speed | 10,000 RPM |
| Operating Temperature | -20°C to +80°C |
| Shaft Bore Diameter | 5mm to 50mm |
| Surface Finish | Black Oxide or Natural Polish |
| Angular Misalignment | ≤1.5° |
| Backlash Status | Zero Backlash |
| Recommended Application | Servo Motor and Stepper Motor Systems |
Anonymous
Apr 02, 2026
Rating: 4/5
Good value
Works well for the price. Instructions could be clearer on torque specs for the set screws, but overall satisfied.
Anonymous
Mar 12, 2026
Rating: 5/5
Solid build quality
The stainless steel version holds up well in our humid workshop environment. No signs of corrosion after three months.
Anonymous
Feb 09, 2026
Rating: 5/5
Reliable connection
ZJM expansion sleeve type is very easy to mount. Saves time during assembly compared to keyed couplings.
Anonymous
Feb 08, 2026
Rating: 5/5
High speed performance
Running at 8000 RPM without vibration issues. The balance seems excellent out of the box.
Anonymous
Jan 28, 2026
Rating: 5/5
Perfect for CNC retrofit
Installed this on my lathe servo motor. Zero backlash noticed and vibration is minimal. Highly recommend for precision work.
Q: Is there a warranty?
A: Yes, we offer a 12-month warranty against manufacturing defects.
Q: Can I use this for a NEMA 23 motor?
A: Yes, provided the bore diameter matches your motor shaft size, typically 1/4 inch or 6.35mm.
Q: Can it handle axial movement?
A: Yes, it compensates for minor axial, radial, and angular misalignments effectively.
Q: What is the difference between DJM and SJM?
A: DJM is single-disc made of steel, while SJM is double-disc stainless steel for higher misalignment compensation.
Q: Does this require lubrication?
A: No, these disc couplings are maintenance-free and do not require lubrication.
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